[kh99]

OK, well maybe there's something about the way it works that I don't understand. Anyway, here's another one you can try:

<if condition="(((float)$GLOBALS[pagestarttime])*1000)%4==0">

That one doesn't work too well for me because strangely some of the digits of what's supposed to be the current time with microseconds don't change from one page to another. But apparently it's OS dependent and I'm running on my home Windows 7 computer, so it might work better for you.

Edit:...otherwise, it's not too difficult to write a plugin that does an actual random number.